GPT-5.1 (batch) pricing & benchmarks
GPT-5.1 (batch) is available from OpenAI at $0.625 per million input tokens and $5.00 per million output tokens ($1.72 blended at 3:1). It accepts up to 400,000 tokens of context. GPT-5.1 is the latest frontier-grade model in the GPT-5 series, offering stronger general-purpose reasoning, improved instruction adherence, and a more natural conversational style compared to GPT-5. It uses adaptive reasoning...
Pricing
Per million tokens · OpenRouter
Input$0.625
Output$5.00
Blended (3:1)$1.72
Specification
openai/gpt-5.1:batch
Context window400K
Max output128K
ReleasedNov 2025
LicenceProprietary
Modalitiesin:text, in:image, in:file, out:text
No independently-run benchmark scores are published for GPT-5.1 (batch) yet. We show nothing rather than reprinting an unverified figure.
Where to run GPT-5.1 (batch)
3 options across 1 provider · 4.0× between cheapest and dearest. Blended at 3:1. ⚠ marks an option serving less context than the best available, or re-pricing above a prompt-length threshold. Bracketed labels are the provider's own service tier or region.
| Host | Blended $/1M | In / Out | Context | Uptime 24h |
|---|---|---|---|---|
| OpenAI (flex) | $0.859 | $0.313 / $2.50 | 400K | — |
| OpenAI | $1.72 | $0.625 / $5.00 | 400K | — |
| OpenAI (priority) | $3.44 | $1.25 / $10.00 | 400K | — |
Host prices and uptime from OpenRouter, synced 2026-08-08.
Compare GPT-5.1 (batch)
FAQ
How much does GPT-5.1 (batch) cost?
GPT-5.1 (batch) costs $0.625 per million input tokens and $5.00 per million output tokens on OpenRouter. At a 3:1 input:output mix that blends to $1.72 per million tokens.
What is GPT-5.1 (batch)'s context window?
GPT-5.1 (batch) accepts up to 400,000 tokens of context, and can generate up to 128,000 output tokens.